/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.nexmark.queries;



import com.bff.gaia.unified.sdk.nexmark.NexmarkConfiguration;

import com.bff.gaia.unified.sdk.nexmark.NexmarkUtils;

import com.bff.gaia.unified.sdk.nexmark.model.AuctionPrice;

import com.bff.gaia.unified.sdk.nexmark.model.Bid;

import com.bff.gaia.unified.sdk.nexmark.model.Event;

import com.bff.gaia.unified.sdk.values.TimestampedValue;



import java.io.Serializable;

import java.util.Collection;

import java.util.Iterator;



/** A direct implementation of {@link Query2}. */

public class Query2Model extends NexmarkQueryModel<AuctionPrice> implements Serializable {

  /** Simulator for query 2. */

  private class Simulator extends AbstractSimulator<Event, AuctionPrice> {

    public Simulator(NexmarkConfiguration configuration) {

      super(NexmarkUtils.standardEventIterator(configuration));

    }



    @Override

    protected void run() {

      TimestampedValue<Event> timestampedEvent = nextInput();

      if (timestampedEvent == null) {

        allDone();

        return;

      }

      Event event = timestampedEvent.getValue();

      if (event.bid == null) {

        // Ignore non bid events.

        return;

      }

      Bid bid = event.bid;

      if (bid.auction % configuration.auctionSkip != 0) {

        // Ignore bids for auctions we don't care about.

        return;

      }

      AuctionPrice auctionPrice = new AuctionPrice(bid.auction, bid.price);

      TimestampedValue<AuctionPrice> result =

          TimestampedValue.of(auctionPrice, timestampedEvent.getTimestamp());

      addResult(result);

    }

  }



  public Query2Model(NexmarkConfiguration configuration) {

    super(configuration);

  }



  @Override

  public AbstractSimulator<?, AuctionPrice> simulator() {

    return new Simulator(configuration);

  }



  @Override

  protected Collection<String> toCollection(Iterator<TimestampedValue<AuctionPrice>> itr) {

    return toValueTimestamp(itr);

  }

}